#web {
    height: 2400px;
    background-color: #F2F6FC;
    position: relative;

    header {
        height: 200px;
        overflow: hidden;
        width: 100%;
        cursor: default;

        .logo {
            img {
                width: 105%;
                height: 200px;
            }

            .saying {
                color: #fff;
                font-size: 48px;
                display: flex;
                margin-left: 300px;
                flex-direction: column;
                justify-content: center;
                user-select: none;

                & p:nth-child(1) {
                    margin-left: 100px;
                }
            }
        }
    }

    section {
        width: 100%;
        height: 2048px;
    }

    footer {
        height: 100px;
        width: 100%;
        background-color: #606266;
        color: #ccc;
        font-size: 18px;
        text-align: center;
        position: absolute;
        bottom: 0px;
        left: 0px;
        padding-top: 20px;
        box-sizing: border-box;
    }
}

#top {
    .nav {
        width: 1100px;
        border-radius: 20px;
        height: 48px;
        background-color: #DCDFE6;
        display: flex;
        margin: 0 auto;

        li {
            line-height: 48px;
            flex-grow: 1;
            text-align: center;
            color: #777777;
            font-size: 18px;

            &:hover {
                background-color: #ff3a3a;
                color: #fff;
                cursor: pointer;
                border-radius: 20px;
            }

        }

        .active {
            background-color: #ff3a3a;
            color: #fff;
            border-radius: 20px;
        }
    }
}

#index {
    padding-top: 10px;

    .main {
        display: flex;
        margin: 0 auto;
        width: 85%;
        justify-content: space-around;

        .fl {
            position: relative;

            h3 {
                position: absolute;
                top: 25px;
                left: 38px;
                color: #6d81ad;
                font-size: 14px;
                line-height: 24px;
                text-align: center;
                font-weight: normal;
            }
        }

        .fr {
            position: relative;

            h3 {
                position: absolute;
                top: 40px;
                left: 320px;
                color: #fff;
                font-size: 16px;
                line-height: 24px;
                text-align: center;
                font-weight: normal;
            }
        }
    }

    .box2 {
        margin: 20px 0;

        .box_In {
            .box_hd {
                h2 {
                    font-size: 38px;
                    text-align: center;
                }
            }

            .main {
                display: flex;
                width: 75%;
                margin-top: 20px;
                justify-content: space-between;
                padding-top: 80px;
                border-top: 1px solid #999;
                position: relative;

                .fl {
                    h3 {
                        width: 268px;
                        height: 60px;
                        font-size: 20px;
                        text-align: center;
                        line-height: 60px;
                        color: #fff;
                        background-color: #8a94a7;
                        border-radius: 60px;
                        position: absolute;
                        top: -70px;
                        left: 80px;
                    }

                    img {
                        transition: all .2s;
                    }

                    img:hover {
                        transform: scale(1.1);
                    }
                }

                .fr {
                    h3 {
                        width: 268px;
                        height: 60px;
                        font-size: 20px;
                        text-align: center;
                        line-height: 60px;
                        color: #fff;
                        background-color: #4883eb;
                        border-radius: 60px;
                        position: absolute;
                        top: -70px;
                        left: 80px;
                    }

                    img {
                        transition: all .2s;
                    }

                    img:hover {
                        transform: scale(1.1);
                    }
                }

                .img3 {
                    width: 129px;
                    height: 170px;
                    position: absolute;
                    top: 150px;
                    transform: translateX(-50%; );
                    left: 50%;
                }
            }
        }
    }

    .item {
        img {
            width: 100%;
            height: 100%;
        }
    }

    .nav {
        h2 {
            text-align: center;
            font-size: 38px;
        }

        .intro {
            border-top: 2px solid #ccc;
            padding: 50px 0;
            display: flex;
            width: 1000px;
            margin: 20px auto;
            justify-content: space-around;

            img {
                width: 250px;
                height: 250px;
                border-radius: 80px;
            }

            p {
                text-indent: 2em;
                width: 600px;
                height: 200px;
                color: #999;
                font-size: 18px;
                display: flex;
                justify-content: center;
                align-items: center;
            }
        }

    }

    .login {
        border-top: 2px solid #ccc;
        padding-top: 20px;
        width: 1000px;
        height: 300px;
        margin: 20px auto;

        .login_item {
            display: flex;
            justify-content: space-around;

            .login_plat {
                width: 400px;
                height: 300px;
                border-radius: 50px;
                background-color: #a4d1ff;
                padding: 15px;
                box-sizing: border-box;

                .login_title {
                    text-align: center;
                    font-size: 32px;
                }

                .login_input_content {
                    margin-top: 30px;

                    .login_input {
                        text-align: right;
                        margin: 20px 40px 25px 0;

                        label {
                            font-size: 18px;
                        }

                        input {
                            height: 23px;
                            width: 200px;
                            padding-left: 3px;
                        }
                    }
                }

                .login_button {
                    margin-top: 30px;
                    text-align: center;

                    button {
                        margin: 10px;
                    }
                }
            }
        }
    }

    .option {
        display: flex;
        flex-direction: column;
        justify-content: space-evenly;
        border-top: 2px solid #ccc;
        padding-top: 10px;
        width: 1000px;
        height: 200px;
        margin: 20px auto;

        h1 {
            text-align: left;
            font-size: 28px;
            font-weight: 400;
        }

        span,
        i {
            font-size: 26px;
        }

        p {
            color: gray;
        }
    }
}

#zhuce {
    background-image: url("../pics/zhuce.webp");
    background-repeat: no-repeat;
    background-size: 100% 100%;
    width: 100%;
    height: 2048px;
    padding-top: 100px;

    .demo-ruleForm {
        width: 500px;
        height: 450px;
        margin: 0 auto;
        padding: 10px 100px 0 50px;
        background-color: rgba(49, 48, 48, .1);

        .login_title {
            font-size: 48px;
            text-align: center;
            padding: 30px 0 10px 0;
            width: 100%;

            i {
                color: rgb(5, 157, 218);
                margin-right: 15px;
            }
        }

        .el-form-item {
            margin-top: 30px;

            .el-form-item__error {
                font-size: 14px;
            }

            .el-form-item__label {
                font-size: 17px;
            }
        }

        .el-button {
            margin-left: 70px;
            margin-top: 20px;
            padding: 15px 25px;
        }
    }



}

#html,
#css {
    width: 100%;
    height: 2048px;
    display: flex;
    background-color: rgb(235, 235, 235);

    .active {
        background-color: #ccc;
    }

    .left {
        flex: 1;
        height: 100%;
        overflow-y: none;
        border-right: 5px double #ccc;

        ul {
            .title {
                transition: .1s;
                padding: 10px 0 9px 30px;
                text-align: left;
                font-weight: 600;
                border-bottom: 1px solid #ccc;
                cursor: pointer;

                .items {
                    color: #999;
                    font-weight: 400;
                    font-size: 14px;
                }
            }
        }
    }

    .main {
        flex: 4;
        overflow-y: auto;
        padding: 10px;
    }
}

#css {
    .left {
        flex: 1;
        height: 100%;
        overflow-y: none;
        border-right: 5px double #ccc;

        ul {
            .title {
                padding: 10px 0 10px 30px;

                .items {
                    font-size: 16px;

                    li {
                        margin: 2px;
                    }
                }
            }
        }
    }
}

#test {
    width: 100%;
    height: 2052px;
    box-sizing: border-box;
    padding: 10px;
    background-image: url("../pics/zhuce.webp");
    background-repeat: no-repeat;
    background-size: 100% 100%;

    .exam {
        width: 1200px;
        margin: 0 auto;
        box-shadow: 10px 10px 10px gray;
        background-color: rgba(61, 61, 247, 0.3);

        .exam_header {
            position: relative;
            display: flex;
            border-bottom: 5px solid rgb(163, 162, 162);

            img {
                width: 150px;
                margin: 10px 50px;
            }

            .exam_info {
                margin-left: 50px;
                height: 100px;
                display: flex;
                flex-direction: column;
                padding-top: 30px;
                justify-content: space-around;

                h1 {
                    font-size: 32px;
                    color: rgb(4, 4, 143);
                }

                .exam_ex {
                    color: rgb(243, 0, 41);
                }
            }

            .btn {
                position: absolute;
                top: 100px;
                right: 200px;
            }

            .tips {
                color: rgb(83, 83, 83);
                padding: 20px 90px;
            }
        }

        .exam_main {
            padding: 10px;

            .exam_ques {
                border-bottom: 1px solid #999;
                padding: 20px 50px;
                font-size: 20px;

                .exam_options {
                    display: flex;

                    li {
                        margin: 5px 30px;

                        input {
                            margin-right: 10px;
                            width: 18px;
                            height: 18px;
                        }
                    }
                }
            }

            .exam_info {
                position: fixed;
                left: 10px;
                top: 300px;
                height: 60px;

            }

            .drawer {
                .el-drawer__header{
                    width: 85%;
                    height: 50px;
                }
                ul {
                    margin: 0 auto;
                    display: flex;
                    justify-content: left;
                    width: 315px;
                    flex-wrap: wrap;
                    li {
                        cursor: pointer;
                        user-select: none;
                        display: block;
                        width: 50px;
                        height: 50px;
                        border-radius: 10px;
                        line-height: 50px;
                        font-size: 20px;
                        text-align: center;
                        color:#409EFF;
                        background-color: #ECF5FF;
                        border: #b3d8ff 1px solid;
                        margin-left: 10px;
                        margin-top: 10px;
                    }
                }
                div{
                    .btn{
                        margin: 50px;
                    }
                }
                .touch{
                    background-color:#409EFF ;
                    color: #fff;
                }
            }

            .line {
                width: 170px;
                position: fixed;
                right: 10px;
                top: 300px;

                .el-progress-bar__innerText {
                    font-size: 18px;
                }
            }
        }

        .exam_res {
            padding: 10px;

            .exam_answers {
                display: flex;
                flex-direction: column;
                justify-content: space-around;
                border-bottom: 1px solid rgb(163, 162, 162);

                .left {
                    font-size: 20px;
                    padding: 10px 50px;
                    box-sizing: border-box;
                }

                .right {
                    margin-bottom: 20px;
                    margin-left: 50px;

                    span {
                        font-size: 20px;
                        margin-right: 20px;
                    }
                }
                .collapse{
                    border: none;
                    .el-collapse-item__header{
                        background-color: #aec7f1;
                        height: 60px;
                        font-size: 18px;
                        padding-left: 10px;
                        border-radius: 10px;
                    }
                    .el-collapse-item__content{
                        background-color: #89b1f7;
                        font-size: 18px;
                        padding-left: 10px;
                    }
                }
            }

        }
    }
}

#html_main,
#css_main {

    padding: 20px 20px 50px 20px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;

    table {
        border-collapse: collapse;
        border: 1px solid #000;
        text-align: center;
        margin: 0 auto;

        td,
        th {
            padding: 10px;
        }
    }

    video {
        margin-left: 250px;
    }

    img {
        width: 500px;
        margin-left: 300px;

        &+p {
            text-align: center;
            font-size: 15px;
            color: gray;
        }
    }

    h1 {
        font-size: 28px;
    }

    h2 {
        text-indent: 1em;
    }

    .tab {
        text-align: center;
        color: gray;
        font-size: 15px;
    }

    p {
        text-indent: 2em;
        font-size: 18px;

        pre {
            font-size: 18px;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            margin-bottom: -20px;
            white-space: pre-wrap;
        }

    }
}